Which of the following describes the efficiency of real machines?

A. Efficiency is 100%

B. IMA is always larger than the AMA

C. IMA is always smaller than the AMA

D. IMA is equal to the AMA

A car with a mass of 1245 kg, traveling at + 29 m/s strikes another car (2175 kg) traveling at - 10 m/s. If the two cars are entangled together after the collisions, with what velocity will they travel?

When a 60-watt light bulb is connected to a 120-volt source the current in the light bulb is?

Where does potential energy come from

The equation for distance is d = st. if a car has a speed of 17 m/s, how long will it take to go 20 m

When nuclear reactor design and construction first begin optimism for the technology was very high. However licensing of new nuclear reactors in the United States effectively stopped about the 1970s mostly due to the public demand explain what

You are drawing a branching diagram to show the relationship between Turtles frogs and alligators which two organisms does the diagram indicateas having the most recent common ancestor

Estimate the length of the neptunian year using the fact that the earth is 1.50Ã108km from the sun on average.

Identify one type of electromagnetic energy that has a shorter wave length than green light

Any object with mass exerts a force on any other object with mass. This force is called?

Is a light bulb considered construction